The company offers its 4th generation machine, the 2000Q System, to buyers as a standalone system, and leasers through the cloud.

On February 27, D-Wave unveiled a preview of its next-gen quantum computing platform that comes with over 5,000 qubits. Pegasus is the new topology of the 5000Q system where every qubit is linked to 15 other qubits for more efficiency, compared to the 2000Q system that connects every qubit to six others.

But no matter how many units sold, D-Wave’s quantum systems aren’t universal. They’re intended for a niche of calculations. Based on “quantum annealing,” the D-Wave machine is more of a quantum simulator than a true quantum computer.

Unless you can provide a place that’s 180x colder than interstellar space – because D-Wave processors only operate in a super-frigid environment, about -273 °C – they aren’t for you.

Where it stands, the current quantum technology isn’t compatible with room temperature operation. The U.S. Navy has patented a room-temp superconductors solution, so who knows what the near future might be holding.

D-Wave Systems Inc. is one of the top companies that are developing their quantum computing systems.

THE leading contender on the list, however, with a comprehensive roadmap, is IBM.

Other than corporate clients with deep pockets who would be willing to buy the Q System One, IBM also intends to lease it via the cloud. The company said the first IBM Q Quantum Computation Center for commercial clients would open in New York in 2019.

The word “integrated” means the 20-qubit system includes all the electronic components it needs for operation, including and especially the cooling mechanism.

Thus, IBM’s Q System One is the first quantum computing system to run outside research labs.

So does this mean quantum computers are finally ready to replace classical computers everywhere, especially at homes?

Not really.

We are a long way off from quantum desktop computers, laptops, smartphones, and wearables.

These machines that defy classical physics are like Formula One cars. What’s the point of riding in one only to get stuck in traffic jams? Along with the maturing technology, both the needs of average people and infrastructure have to develop for universal quantum computers to become ubiquitous.

Now, it seems like cloud-based quantum computers will be the norm for a while. Aside from IBM and D-Wave, other companies like Google and Rigetti make their quantum systems commercially-available online.